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3921 Klementʹev

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Also known as Klement'ev, Klementʹev, (3921) Klementʹev

asteroid

Picture of the Day · NASA

Pathfinder on Mars

Pathfinder on Mars

2026-07-04

On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.

via NASA APOD

Wikidata facts

Instance of
asteroid
Followed by
3922 Heather
Follows
Q152367
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
16.513
Orbital period
1572.91032148194
Show 18 more facts
discoverer or inventor
Bella A. Burnasheva
site of astronomical discovery
Crimean Astrophysical Observatory
provisional designation
1984 QK1
time of discovery or invention
1971-07-19
orbital eccentricity
0.2854455794713511
orbital inclination
12.02984460281133
periapsis
1.89135187320899
apoapsis
3.402441906163926
semi-major axis of an orbit
2.646896889686458
mean anomaly
178.2136871166235
longitude of ascending node
155.2385196263544
argument of periapsis
216.4163253714376
absolute magnitude
12.77
Commons category
3921 Klementʹev
albedo
0.038
rotation period
6.754
time of periapsis
2460221.84958918
Sources (2)

via Wikidata · CC0